Abstract:
A cross sectional investigation on the distribution and prevalence of intestinal parasitic infections was undertaken in Western Abaya, North Omo, in January 1995. As the area is potentially irrigable for modern agriculture, emphasis was placed to explore on the endemicity of schistosomiasis, including malacological assessments. Five percent of the whole population on 1473 people, in 16 villages of the area, were parasitologically examined for intestinal parasites. Among the intestinal parasitic infections, hookworm was demonstrated in all of the villages with prevalences ranging from 4.1% (Algie) to 75% (Wajifo). The majority of the villages (10/16=62.5%) had hookworm prevalences of over 50%. Schistosoma mansoni infections were found in 11 villages with prevalences of up to 53% with more males than females being affected (P<0.001). Infected Biomphalaria sudanica snails with infection rates of up to 2.1% at two sites of Lake Abaya were also found. The importance of the dominant, S. mansoni and hookworm infections in the potentially irrigable area of Western Abaya and feasible measures of their control are discussed.
